Picture frame



FIG. 1 is a perspective view of the present invention picture frame;

FIG. 2 is a left side elevational view of the picture frame;

FIG. 3 is a right side elevational view of the picture frame;

FIG. 4 is a front elevational view of the picture frame;

FIG. 5 is a back elevational view of the picture frame;

FIG. 6 is a top plan view of the picture frame; and,

FIG. 7 is a bottom plan view of the picture frame.

The broken line illustrations of a first inner perimeter defining a first window in FIGS. 1 and 4, and the broken line illustrations of a second inner perimeter defining a second window in FIG. 5, are for illustrative purposes only and form no part of the claimed invention. 

The ornamental design for a picture frame, as shown and described herein. 